function  pro_draw_1127(mu,A)
string=['BeamWarming__mu=',num2str(mu),'.png'];

figure(1);
k=[0:0.01:2*pi];
z=exp(k*i)-1.0;
fp0=plot(z);
fp0.Color = 'r';
grid on;
set(gca,'XTick',[-1.5:0.5:1.5]);   
set(gca,'yTick',[-1.5:0.5:1.5]); 
axis equal;
hold on;

E=eig(A);
fp1=plot(E);
fp1.Color='k';
fp1.LineStyle='none';
fp1.Marker='.';
title(string);
saveas(1,string);
clf(1);

end

